(obsolete) number of touched articles by user in time interval

SQL

USE commonswiki_p;
set @cat:="Media_from_WikiDaheim_2023_in_Austria/all"; # reference category counted
set @timestamp:=20230616220000; # registration time threshold for new users

select actor.actor_user
from actor
where actor.actor_name = "Z thomas"

SELECT /* SLOW_OK */ DISTINCT actor_name AS user, COUNT(image.img_name) as img_count, user.user_registration
    FROM actor, revision, image, page, categorylinks, user 
    WHERE page.page_id=categorylinks.cl_from
        AND actor.actor_id = revision.rev_actor
        AND image.img_name = page.page_title
        and revision.rev_page = page.page_id
        and revision.rev_parent_id = 0
        AND categorylinks.cl_to = @cat
        and user.user_id = actor.actor_user
        AND user.user_registration > @timestamp
    GROUP BY user 
    ORDER BY img_count DESC limit 300;
SQL

Checking query status...
